Edit your launcher link and add the "developer" word behind the executable (without quotes). Developer mode will be unlocked and you can use from the top right. At any time during gameplay, you can access the in-game console via the console hotkey CTRL SHIFT ~.

Various Steam Achievements
Complete the indicated task to unlock the achievement.

Achievement How to unlock
AKA Award a heroic title.
An honored guest Spoke with King Meinolf in Chapter 16.
Apostate Defeat 3 enemies with the Apostate.
Bastion Defeat 3 enemies with the Bastion.
Bat out of Hel Complete Chapter 21 with only one return to Arberrang.
Bromance Put Gudmundr and Petrus into battle together 5 times.
Came a Long Way Reach the end of Chapter 20 with 300 clansmen.
Castaway Defeat 3 enemies with the Castaway.
Double Blind Put an end to the warped Sundr.
Dredge Lover End the game with all possible playable dredge alive.
Dredge Slayer Leave no dredge alive.
Eww Salvage a treasure trove in the darkness.
Fighting to live Successfully hold out to the bitter end.
Finish Strong Complete the game on Hard difficulty level without losing a single battle.
Godstone Denglr Redux Return to the godstone Denglr.
Godstone Dredge Visit the godstone of the dredge.
Good Listener Talk to at least 15 allies in Arberrang and the darkness.
Guided Complete the game with all possible heroes still alive.
Hard Difficulty Complete the game on Hard difficulty.
Horseborn Rampage Minimized casualties during 'disagreement' over horseborn.
I'm Being Repressed Now we see the violence inherent in the system.
Journey's End See Rook or Alette safely to the end of the Saga.
Keep It Together Finish the game with Hakon and Canary allied to you.
Living Legend Promote a hero to rank 15.
Looter Defeat the final wave of every wave battle in the game.
Mixed Martial Arts Win a battle with at least one human, horseborn, varl, and dredge in the fight.
Normal Difficulty Complete the game on Normal difficulty.
Pacified Put Bolverk to rest once and for all.
Pass It On Pass Juno's Weaved Energy buff 4 times before it expires.
Passive Aggressive Use items and heroic titles to have 3 passive abilities on one character.
Peace Offering Reunite dredge baby with its own kind.
Poetic Justice Listen to Aleo's recitation.
Restless Never let the Ravens stop for rest.
Rings a Bell Fail to learn your lesson the first time.
Ruined Defeat Ruin on the battlefield.
Scrape By Complete the game with both caravans alive, but with fewer than 16 characters.
Scrivener Defeat 3 enemies with Ubin.
Shipped Accept the proposition.
Shortcut Arrive safely at Ridgehorn.
Sole Survivor Juno wanders alone for all eternity.
Talk It Out Convince Eyvind to do the right thing.
The Saga Concludes Import Save Game from Banner Saga 2.
Thin Ice Survive the trek across the frozen sea.
Trapped Trap two enemies in sinkholes.
Warmonger Fight 30 battles in a single playthrough.
We Made It Reunite separated family.
Which Witch Alfrun joined the the caravan.
Witch Defeat 3 enemies with Alfrun.
Worse for Wear Keep Folka from losing her head over Bolverk.
Young Love Do you like me? O-Yes / O-No.

if you cannot download trainer then go to Chrome/Firefox's settings, specifically to the Privacy settings and simply unchecking the "Enable phishing and malware protection" option.

Some Game Trainers are sometimes reported to be a Virus or Trojan,
the most common is a keylogger called HotKeysHook or the file
has been packed/protected with VMProtect or Themida and
is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In ALL cases this is a FALSE ALARM as NONE
of the Game Trainers @ GGMANIA contain known malicious code!!